[patch] don't break ABI in upcoming 0.34 release

[David Zeuthen]

Just wanted to mention that this patch is in 0.34 so distributors should
have a smooth upgrade from 0.33. Users will have to reboot (or at least
restart most of userspace) after upgrading though. Also people building
from CVS (e.g. jhbuild) will experience some pain as they have to
rebuild all packages to use libdbus.so.1 instead of libdbus.so.2.

    David